Yesterday, my iphone just stopped receiving calls. Everything else works fine (making calls, sms, email..ect.). The only way i found out were people telling me that they were trying to call me all day. So i called my iphone, it rings and rings then goes to voice mail. The phone does not show missed call or anything, though if i turn the screen on it will act like i just started getting a call (but not all the time). Or, when it does ring, i might ring once on my end. It is jailbroken, its been like that for two months, the only thing I've done recently was put a movie on it. Should i restore my phone, has anyone else had this problem?